Progress on nuclear reaction rates affecting the stellar production of ²⁶Al

Laird, A. M.; Lugaro, M.; Kankainen, A.; Adsley, P.; Bardayan, D. W.; Brinkman, H. E.; Côté, B.; Deibel, C. M.; Diehl, R.; Hammache, F.; den Hartogh, J. W.; José, J.; Kurtulgil, D.; Lederer-Woods, C.; Lotay, G.; Meynet, G.; Palmerini, S.; Pignatari, M.; Reifarth, R.; de Séréville, N.; Sieverding, A.; Stancliffe, R. J.; Trueman, T. C.L.; Lawson, T.; Vink, J. S.; Massimi, C.; Mengoni, A.

Abstract

The radioisotope 26Al is a key observable for nucleosynthesis in the Galaxy and the environment of the early Solar System. To properly interpret the large variety of astronomical and meteoritic data, it is crucial to understand both the nuclear reactions involved in the production of 26Al in the relevant stellar sites and the physics of such sites. These range from the winds of low- and intermediate-mass asymptotic giant branch stars; to massive and very massive stars, both their Wolf-Rayet winds and their final core-collapse supernovae (CCSN); and the ejecta from novae, the explosions that occur on the surface of a white dwarf accreting material from a stellar companion. Several reactions affect the production of 26Al in these astrophysical objects, including (but not limited to) 25Mg(p, γ)26Al, 26Al(p, γ)27Si, and 26Al(n, p/α). Extensive experimental effort has been spent during recent years to improve our understanding of such key reactions. Here we present a summary of the astrophysical motivation for the study of 26Al, a review of its production in the different stellar sites, and a timely evaluation of the currently available nuclear data. We also provide recommendations for the nuclear input into stellar models and suggest relevant, future experimental work.

Citation

Laird, A. M., Lugaro, M., Kankainen, A., Adsley, P., Bardayan, D. W., Brinkman, H. E., …Mengoni, A. (2023). Progress on nuclear reaction rates affecting the stellar production of 26Al. Journal of Physics G: Nuclear and Particle Physics, 50(3), Article 033002. https://doi.org/10.1088/1361-6471/ac9cf8

• Journal Article Type: Review
• Acceptance Date: Oct 24, 2023
• Online Publication Date: Feb 28, 2023
• Publication Date: 2023
• Deposit Date: Apr 28, 2023
• Publicly Available Date: Apr 28, 2023
• Journal: Journal of Physics G: Nuclear and Particle Physics
• Print ISSN: 0954-3899
• Electronic ISSN: 1361-6471
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 50
• Issue: 3
• Article Number: 033002
• DOI: https://doi.org/10.1088/1361-6471/ac9cf8
• Public URL: https://hull-repository.worktribe.com/output/4242033